Telecommunication system including non-symmetric switching...

Details Telecommunication system including non-symmetric switching... Telecommunication system including non-symmetric switching...

H - Electricity

04

Q

344/25, 344/52,

H04Q 3/52 (2006.01)

Patent

CA 1097785

TELECOMMUNICATION SYSTEM INCLUDING NON-SYMMETRIC SWITCHING NETWORK ABSTRACT A telephone central office switching system including a non-symmetric four stage (ABC+D) folded network and junctor circuits, whereby a communication path is established from a calling terminal over the four stage network, through a junctor circuit, and back over the four stage network to a called termi- nal. The junctors and associated C and D stage switching arrays (matrices) are arranged in ordered pairs related to the two sides of the junctors. Further, the ordered pairs are arranged in ordered pair groups to facilitate searching. The crosspoints of the switching arrays (matrices) comprise C-MOS driven J-FETs (FET packs) controlled and supervised by integrated circuit latch packs which provide distributed control and memory.

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